| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308906 |
| ISSN: | 0104-6632 |
| Authors: | Silva, M.A.Pereira da1 Cardoso, R.M Schmal, M2 |
| Institutions: | 1Universidade Federal do Rio de Janeiro, Escola de Quimica, Rio de Janeiro. Brasil 2Universidade Federal do Rio de Janeiro, Instituto Alberto Luiz Coimbra de Pos-Graduacao e Pesquisa de Engenharia, Rio de Janeiro. Brasil |
| Year: | 2003 |
| Season: | Mar |
| Volumen: | 20 |
| Number: | 1 |
| Pages: | 51-56 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The oxidation of propane on was studied with Pt-xWO3/Al2O3 catalysts was studied ,by varying the concentration of tungsten sublayer. Thermal analysis and XRD in situ showed that the enrichment of tungsten at the surface is associated with the formation of HxWO3 bronze. FTIR results with C3H8 and O2 indicated that the catalyst surface properties and the interaction between W and Pt were modified. These modified surface complexes prevented the formation of acetates and formate species. The addition of W increased the activity of Pt/Al2O3 towards in C3H8 oxidation. Tungsten was the main responsible for the stability of the bimetallic catalysts in the presence of water |
| Disciplines: | Química |
| Keyword: | Química orgánica, Ingeniería química, Propano, Oxidación, Catalizadores de platino-tungsteno, Catalizadores automotrices |
| Keyword: | Chemistry, Organic chemistry, Chemical engineering, Propane, Oxidation, Platinum-tungsten catalysts, Automotive catalysts |
| Full text: | Texto completo (Ver HTML) |
